Hacker News
- Most Remote Spots in USA Wilderness Complexes http://www.peakbagger.com/report/report.aspx?r=w 141 comments
- Graph of U.S. City Populations (1790-2000), or "The rise and fall of Pittsburgh, PA" http://www.peakbagger.com/pbgeog/histmetropop.aspx 8 comments reddit.com
- I've always wondered this: how to find out where on Earth someone must be to be upside-down relative to you. http://www.peakbagger.com/pbgeog/worldrev.aspx 4 comments reddit.com